20.500.12556/RUL-22454 Robustness of the fisher's discriminant function to skew-curved normal distribution Discriminant analysis is a widely used multivariate technique with Fisher's discriminant analysis (FDA) being its most venerable form. FDA assumes equality of population covariance matrices, but does not require multivariate normality. Nevertheless, the latter is desirable for optimal classification. To test FDA's performance under non-normality caused by skewness the method was assessed with simulation based on a skew-curved normal (SCN) distribution belonging to the family of skew-generalised normal distributions; additionally, effects of sample size and rotation were evaluated. Apparent error rate (APER) was used as the measure of classification performance. The analysis was performed using ANOVA with (transformed) mean APER as the dependent variable. Results show the FDA to be highly robust to skewness introduced into the model via the SCN distributed simulated data. true false false Angleški jezik Neznan jezik Delo ni kategorizirano 2014-07-11 14:26:40 2014-07-11 14:26:40 2022-06-02 03:50:31 0000-00-00 00:00:00 2005 0 0 Str. 231-242 no. 2 Vol. 2 2005 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 303 1854-0023 24315741 http://mrvar.fdv.uni-lj.si/pub/mz/mz2.1/sever.pdf 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=22454 Fakulteta za družbene vede 0 0 0